Albedo dry run to calculate some water to beach/sand/desert stretching, a kind of simple atmospheric correction

-d

Soft mode (MODIS)

Albedo dry run to calculate some water to beach/sand/desert stretching, a kind of simple atmospheric correction

--overwrite

Allow output files to overwrite existing files

--help

Print usage summary

--verbose

Verbose module output

--quiet

Quiet module output

--ui

Force launching GUI dialog

Parameters:

input=name[,name,...] [required]

Name of input raster map

output=name [required]

Name for output raster map

DESCRIPTION

i.albedo calculates the albedo, that is the Shortwave surface reflectance in the range of 0.3-3 micro-meters. It takes as input individual bands of surface reflectance originating from MODIS, AVHRR, Landsat or Aster satellite sensors and calculates the albedo for those. This is a precursor to r.sun and any energy-balance processing.

NOTES

It uses for Landsat 8 the weighted average reflectance (temporary until algorithm is found).

It assumes MODIS product surface reflectance in [0;10000].

TODO

Maybe change input requirement of MODIS to [0.0-1.0]?

SEE ALSO

r.sun, i.vi

References

For a 2 band determination of the Aster BB Albedo see the following: Salleh and Chan, 2014. Land Surface Albedo Determination: Remote Sensing and Statistical Validation. in proceedings of FIG 2014. https://www.fig.net/resources/proceedings/fig_proceedings/fig2014/papers/ts05g/TS05G_salleh_chan_6910.pdf